diff options
| author | Georg Müller <georgmueller@gmx.net> | 2015-09-23 10:27:45 +0200 |
|---|---|---|
| committer | Georg Müller <georgmueller@gmx.net> | 2015-09-23 10:27:45 +0200 |
| commit | 6a512301bbf77617b20292e746767f78cb743299 (patch) | |
| tree | 8bee06a21f6b8361b34efdf5e15832a71e0b0082 /src | |
| parent | 5c781d6b0dd2d5fce3cacd653ac10556e39b857b (diff) | |
Set accept_ra to "2" if enabled in config
This causes the kernel to accept router advertisments even if
ip forwarding is enabled for this interface.
This fixes #1340.
Diffstat (limited to 'src')
| -rw-r--r-- | src/network/networkd-link.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 86f1c3bb1a..05a1358eca 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -1794,7 +1794,6 @@ static int link_set_ipv6_privacy_extensions(Link *link) { static int link_set_ipv6_accept_ra(Link *link) { const char *p = NULL, *v = NULL; - bool b; int r; /* Make this a NOP if IPv6 is not available */ @@ -1804,20 +1803,21 @@ static int link_set_ipv6_accept_ra(Link *link) { if (link->flags & IFF_LOOPBACK) return 0; - /* if unset check the ip forwarding setting maintained for the interface - * and then set it to depending on that. enabled if local forwarding - * is disabled. disabled if local forwarding is enabled. + /* If unset use system default (enabled if local forwarding is disabled. + * disabled if local forwarding is enabled). + * If set, ignore or enforce RA independent of local forwarding state. */ if (link->network->ipv6_accept_ra < 0) { - if (IN_SET(link->network->ip_forward, ADDRESS_FAMILY_YES, ADDRESS_FAMILY_IPV6)) - b = false; - else - b = true; - } else - b = link->network->ipv6_accept_ra; - + /* default to accept RA if ip_forward is disabled and ignore RA if ip_forward is enabled */ + v = "1"; + } else if (link->network->ipv6_accept_ra > 0) { + /* "2" means accept RA even if ip_forward is enabled */ + v = "2"; + } else { + /* "0" means ignore RA */ + v = "0"; + } p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/accept_ra"); - v = one_zero(b); r = write_string_file(p, v, 0); if (r < 0) { |